HomeMy WebLinkAboutBriar Ridge Offsite CONSTRUCTION DRAWINGS V1GENERAL
1. All construction work shall be done in accordance with the current version of the Idaho Standards for Public Works
Construction (ISPWC), the City of Meridian Supplemental Specifications to the ISPWC (and any addendums), Meridian Design
Standards and the requirements of the Ada County Highway District (ACHD). The more stringent of any of these standards
shall be the controlling standards or specifications.
2. The Contractor shall have a copy of the latest City of Meridian Standard Specifications and Drawings on site or readily
accessible at all times during construction (available on the website). Failure to have access to a current copy of the
Standard Specifications on site could be grounds for a stop work order until the situation is resolved.
3. The Contractor shall have plans stamped "Approved for Construction" by the City of Meridian on site at
all times.
4. All Contractors, Subcontractors, and Utility Contractors shall attend a pre -construction conference prior to start of work.
5. Contractors shall notify the appropriate agency when materials are on site or inspection of the work is
required. No work may begin on any project without Twenty Four (24) hour prior notice.
6. Contactor shall notify the Public Works Inspector 48 hours prior to the required testing. The Contractor may not open or
close water valves.
7. All material furnished on, or for the project must meet the minimum requirements of the approving agencies. At the
request of the approving agency or the Design Engineer, Contractors shall furnish proof that all materials installed on this
project meet the specification requirements set forth in General Construction Note No. 1.
8. Work subject to approval by any governmental agency must be approved prior to (A) backfilling trenches for pipe; (B)
placing of aggregate base; (C) placing of concrete; (D) placing of asphalt paving.
9. Inspection, approval and final acceptance of all water and sewer construction shall be by the Public Works Department,
and their decision shall be final. Such inspections shall not relieve the contractor from the responsibility of performing the
work in an acceptable manner in accordance with the DEQ/QLPE approved construction plans.
10. Any deviation from the approved plans and specifications must have the applicable agency approval in writing prior to
construction.
11. Prior to beginning installation of street lights, the electrical contractor shall obtain an Electrical Permit from the Building
Division of the Meridian Public Works Department. Any deviation in street light locations from the approved plans must be
approved in writing from the City Engineer.
12. All lot, block street, right-of-way and easement dimensions shall be taken from the final plat of: Briar Ridge Subdivision
No. 1.
13. The Contractor shall maintain all existing drainage facilities within the construction area until the drainage improvements
are in place and functioning.
14. All Contractors working within the project boundaries are responsible for compliance with all applicable safety laws of any
jurisdictional body. The Contractor shall be responsible for all barricades, safety devices and control of traffic within and
around the construction area.
15. The locations of existing underground utilities are shown in an approximate way only. The Contractor shall determine the
exact location of all existing utilities before commencing work. The Contractor assumes all responsibility for any and all
damages caused by his failure to exactly locate and preserve any and all underground utilities. Digline # 1-800-342-1585.
16. All Contractors working within the public road right-of-way are required to secure a right-of-way construction permit
from ACHD at least forty-eight (48) hours prior to any construction.
17. Locate subsurface stormwater disposal facilities (including infiltration beds and drywells) at least 25 feet from water
mains. This requirement does not apply to catch basins or sand and grease vaults.
18. The Contractor(s) shall remove all obstructions, both above and below ground, as required for the construction of the
proposed improvements. This shall include clearing and grubbing which consists of clearing the ground surface of all trees,
stumps, brush, undergrowth, hedges, heavy growth of grass or weeds, fences, structures, debris, rubbish, and such material
which, in the opinion of the Engineer, is unsuitable for the foundation of pavements. All material not suitable for future use
on site shall be disposed of off site.
19. Survey control points which are critical to the construction of the project are located within the limits of work. The
Contractor shall take precaution to protect the points in place.
20. All costs of retesting for previously failed tests shall be back charged to the Contractor by the Owner. All costs to the
Contractor incurred in correcting deficient work shall be to the Contractors account. Failure to correct such work will be
cause for a stop work order and possible termination.
21. The Contractor is to field verify all existing curb & gutter, storm drain, channel crossings, and sewer elevations or inverts
prior to construction. When discrepancies occur between plans and specifications, the Contractor shall immediately notify the
Engineer. Untimely notification shall negate any Contractors claim for additional compensation.
22. Each Contractor shall be responsible for acquiring any necessary NPDES Permits, filing any NOI's, and preparing a
Pollution Prevention Plan (PPP) in accordance with the Environmental Protection Agency. Contact the EPA at 208-378-5746
for the required information.
23. The pipe Contractor shall replace all pavement and concrete removed for the installation of water, sewer, or irrigation
pipe. All pavement shall be replaced within seven calendar days from the time the pavement and/or concrete is removed.
Concrete and pavement shall be replaced per ISPWC Standards.
24. The Contractor shall field verify all existing curb and gutter, storm drain, channel crossings and all storm drain and
sewer elevations or inverts prior to construction and notify the engineer when elevations or inverts do not match plans.
ROADWAY
1. All contractors working within the public road right-of-way are required to secure a right-of-way construction permit from
ACHD or ITD at least forty-eight (48) hours prior to any construction.
2. ACHD or ITD will inspect all work within the public rights -of -way to include utility trenches above the pipe zone. Contact
ACHD Inspection Services at 387-6284.
3. Meridian Public Works will inspect storm drainage improvements serving private roads and parking lot improvements outside
the public right-of-way.
4. All construction in the public right-of-way shall conform to the current edition of the ISPWC and the ACHD Supplemental
Specifications. No exception to District Policy, Standards, and the ISPWC will be allowed unless specifically and previously
approved in writing by the District.
5. Set the tops of all valve boxes and sewer manholes flush with the slope of the finished street grades. The roadway
contractor shall install and adjust all spacers, grade rings, manhole rings and lids.
6. Place all water valves, blow -offs and manholes so that they do not conflict with any concrete curb and gutter, valley
gutter or sidewalk improvements.
7. Existing A.C. pavement shall be cut to a neat straight line (2' minimum cutback) parallel or perpendicular to the street
centerline and the exposed edge shall be tacked with emulsion prior to paving. Actual field conditions during trenching
may require additional pavement repair beyond the limits shown on the plans. Refer to conditions listed in the ACHD Policy
Manual.
8. All water meters are to be located outside of the public right-of-way. All fire hydrants are to be located within the road
right-of-way. There must be at least a one (1) foot separation between the back of sidewalk (or curb if no sidewalk)
and the leading edge of any fire hydrant.
9. Over excavation and additional granular backfill may be required in high groundwater areas which are to be determined by
the field inspector.
10.All materials placed as fill or backfill shall be placed and compacted in accordance with Section 306 of the
current edition of ACHD Supplemental Specifications.
11.Roodwoy construction will meet specific details and requirements of the following Idaho Standards for Public Works Construction Standard
Drawings (Current Edition):
1. Street Section, ACHD SD-801 and sections as shown on Street Details Sheet
2. Asphalt repair for street cuts: SD-301, ACHD SD-303, ACHD SD-806.
3. 4.0' Concrete Valley Gutter, ACHD SD-708
4. Rolled Curb and Gutter, ACHD SD-702
5. Pedestrian Ramp for Handicapped, SD-712C, SD 712G
6. Tactile warning surface (TWS) colored a standard color of yellow as per ACHD SD-712
7. Sidewalks, ACHD Supplemental Drawing SD-709
8. Not Utilized
9. Standard Drop Inlet Type IV w/ 12" Sump, ACHD Supplemental SD-604A
12. For subdivision sign installation; outside installers must be bonded with ACHD
and obtain a no -charge right-of-way permit.
13. Prior to placement of any pavement markings contact ACHD Inspection for verification of compliance with policy and existing pavement
markings.
DRAINAGE
1. For any drainage facilities within a public Right -of -Way, ACHD or ITD shall be responsible for inspection. For any private
drainage facilities the project engineer or architect shall be responsible for inspection and certification of drainage facilities;
however any roof drainage and piping to the facilities will be inspected by the Meridian plumbing official under the
appropriate permit.
SEWER
1. Construction of the sewer system shall conform to the standards in the
Wastewater Rules (IDAPA 58.1.16) as well as the standards and
specifications referred to in General Construction Note No. 1.
2. The horizontal separation of potable water mains and non -potable water
mains (sanitary sewer, storm drain, and irrigation) shall be a minimum of
ten (10) feet. Where it is necessary for a potable water main and
non -potable water main to cross with less than eighteen (18) inches of
vertical separation, the crossing shall be constructed in accordance with
Section 542.07 of the Idaho Rules for Public Drinking Water Systems
(IDAPA 58.01.08) and Section 430.02 of the Wastewater Rules (IDAPA
58.01.16).
3. The horizontal separation of non -potable services and potable water
services or potable water mains shall be a minimum of six (6) feet.
Where it is necessary for a potable water main and non -potable water
main to cross with less than eighteen (18) inches of vertical separation,
the crossing shall be constructed in accordance with Section 542.07 of
the Idaho Rules for Public Drinking Water Systems (IDAPA 58.01.08) and
Section 430.02 of the Wastewater Rules (IDAPA 58.01.16).
4. Place sewer service lines in a six (6) inch diameter water class pipe
sleeve wherever the service line crosses a storm water treatment facility
(i.e., seepage beds, drainage swales).
WATER
1. Construction of the water system shall conform to the standards in the
"Idaho Rules for Public Drinking Water Systems (IDAPA 58.01.08)" as well
as the standards and specifications referred to in General Construction
Note No. 1.
2. The horizontal separation of potable water mains and non -potable water
mains (sanitary sewer, storm drain, and irrigation) shall be a minimum of
ten (10) feet. Where it is necessary for a potable water main and
non -potable water main to cross with less than eighteen (18) inches of
vertical separation, the crossing shall be constructed in accordance with
Section 542.07 of the Idaho Rules for Public Drinking Water Systems
(IDAPA 58.01.08) and Section 430.02 of the Wastewater Rules (IDAPA
58.01.16).
3. The horizontal separation of non -potable services and potable water
services or potable water mains shall be a minimum of six (6) feet.
Where it is necessary for a potable water main and non -potable water
main to cross with less than eighteen (18) inches of vertical separation,
the crossing shall be constructed in accordance with Section 542.07 of
the Idaho Rules for Public Drinking Water Systems (IDAPA 58.01.08) and
Section 430.02 of the Wastewater Rules (IDAPA 58.01.16).
4. Place water service lines in a two (2) inch diameter pipe sleeve wherever
the service line crosses a storm water treatment facility (i.e. seepage
beds, drainage swales).
5. The Contractor shall be responsible for providing continuous water service
to all existing water users affected by construction. If water service must
be interrupted, the contractor shall coordinate with the Public Works
Inspector.
GENERAL
LEGEND
SS
EXISTING SEWER LINE
W
EXISTING WATER LINE
SD
NEW STORM DRAIN
W
NEW WATER LINE
S
NEW SEWER LINE
PI
NEW PRESSURE IRRIGATION LINE
W/SERVICE
x x x x x x
EXISTING FENCE
Ep
EXISTING EDGE OF PAVEMENT
EP
NEW EDGE OF PAVEMENT
SAW CUT LINE
-----
BOUNDARY LINE
ROADWAY CENTER LINE
ROADWAY RIGHT-OF-WAY
- - - - - - - - - -
EASEMENT BOUNDARY
LOT LINE
- - --
EXISTING CONTOUR
��600 -�
FINAL GRADE CONTOUR
ELEVATION ® STATION
STATION
POINT (TOP BACK OF ROLLED
ELEVATION
CURB UNLESS OTHERWISE NOTED)
TVC = TOP BACK VERTICAL CURB
TRC = TOP BACK ROLLED CURB
TRLC = TOP REVERSE LIP CURB
PC = POINT OF CURVATURE
PT = POINT OF TANGENCY
FL = GUTTER FLOW LINE
GB = GRADE BREAK
GC = GRADE CHANGE
HP = HIGH POINT
LP = LOW POINT
El = END INVERT SEWER SERVICE
SANITARY SEWER MANHOLE
00
EXISTING SANITARY SEWER MANHOLE
---------
4" SEWER SERVICE LINE
TYPICAL DOUBLE WATER
SERVICE
PROPOSED FIRE
HYDRANT PER
o
EXISTING FIRE HYDRANT
OLOT
NUMBER
HE
CATCH BASIN - ISPWC
PER PLANS
DIRECTION OF DRAINAGE FLOW
t-*
STREET LIGHT
EXISTING DECIDUOUS TREE (CALIPER)
EXISTING POWER LINE & POLE
DEVELOPMENT PLANS FOR
BRIAR RIDGE SUBDIVISION OFFSITE
LOCATED IN THE E 1/2 OF SECTION 36,
TOWNSHIP 3 NORTH, RANGE 1 WEST, BOISE MERIDIAN,
MERIDIAN, ADA COUNTY, IDAHO
2022
CONSTRUCTION I
AREA
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PREVAIL
SUBDIVISION
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NAVD 1988 DATUM VICINITY M A P
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SHEET DESCRIPTION
1 - COVER SHEET, INDEX, VICINITY MAP, & NOTES
2 - SEWER PLAN & PROFILE
3 - WATER AND SEWER PLAN & PROFILE
THE ENGINEER OF RECORD CERTIFIES THAT THE PLANS
ARE PREPARED IN SUBSTANTIAL CONFORMANCE WITH THE
ACHD POLICY MANUAL AND STANDARDS IN EFFECT AT THE
TIME OF PREPARATION. THE ENGINEER ACKNOWLEDGES
THAT ACHD ASSUMES NO LIABILITY FOR ERROR OR
DEFICIENCIES IN THE DESIGN. ALL VARIANCES FROM ACHD
POLICY SHALL BE APPROVED IN WRITING. THE FOLLOWING
VARIANCES, LISTED BY DATE AND SHORT DESCRIPTION,
WERE APPROVED FOR THE PROJECT:
- NONE.
Plans Are Accepted For Public
Street Construction
By stamping and signing the improvement plans, the Registered
Engineer ensures the District that the plans conform to all District
policies and standards. Variances or waivers must be specifical-
ly and previously approved by the District in writing. Acceptance
of the improvement plans by the District does not relieve the
Registered Engineer of these responsibilities
BYDATE:
ADA COUNTY HIGHWAY DISTRICT
ENGINEER
BAILEY ENGINEERING, INC.
1119 E STATE ST, SUITE 210
EAGLE, ID 83616
TEL: 208-938-0013
EVELOPER
T LOGY DEVELOPMENT, INC.
9839 W CABLE CAR ST, SUITE 101
BOISE, ID 83709
TEL: 208-895-8858
NOT APPROVED FOR
CONSTRUCTION
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KEYNOTES
O INSTALL NEW SEWER MANHOLE OVER
EXISTING SEWER MAIN PER ISPWC
SECTION 502.3.5.B.2.
O APPROX MAX SAWCUT LINE SHOWN. SEE
MERIDIAN RD. REPAIR SECTION, THIS
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ON TRENCHING APPROXIMATIONS AND
MAY NOT BE NECESSARY FOR
CONSTRUCTION DEPENDENT ON
TRENCHING TECHNIQUE(S) AND SITE
CONDITIONS. COORDINATE ANY SAWCUT
WITH ITO.
NOTE:
ALL SEWER MANHOLES ARE TO BE 60" INNER DIAMETER,
CONSTRUCTED PER ISPWC SD-501.
THE SLOPE AND LENGTH OF SEWER MAIN IS CALCULATED
FROM INSIDE FACE OF MANHOLE TO INSIDE FACE OF
MANHOLE.
THECITYOF MERIDIAN REQUIRES 5 FEET OF COVER OVER
WATER MAINS THAT RUN ON MID -SECTION LINES.
ALL WATER MAIN IS TO BE BLUE ANSI/AWWA C-900 DR18,
PER CITY OF MERIDIAN SUPPLEMENTAL SPECIFICATIONS.
BENCH MARKS 6MTBM
TBM #1 - 2726.57 - RIM OF EX SEWER MANHOLE-2.
LOCATED APPROX STA 2+00 ON EXISTING SEWER MAIN.
SEE SHEET 2.
TBM #2 - 2730.45 - BRASS CAP [HIGHWAY MONUMENT]
LOCATED APPROX STA 5+20. SEE SHEET 2.
4" ASPHALT PAVEMENT
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4" - 3/4" MINUS CRUSHED GRAVEL
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TO SITE GEOTECHNICAL BY SITE CONSULTING,
LLC DATED NOVEMBER 30, 2018.
NOT APPROVED FOR
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KEYNOTES
O APPROX MAX SAWCUT LINE SHOWN. SEE
MERIDIAN RD. REPAIR SECTION, SHEET 2.
SAWCUT AT LOCATION SHOWN IS BASED
ON TRENCHING APPROXIMATIONS AND
MAY NOT BE NECESSARY FOR
CONSTRUCTION DEPENDENT ON
TRENCHING TECHNIQUE(S) AND SITE
CONDITIONS. COORDINATE ANY SAWCUT
WITH ITD.
O REMOVE EXISTING BLOW -OFF ASSEMBLY
& CONNECT TO EX. 12" WATER MAIN.
Q3 CONST. 2" BLOW -OFF ASSEMBLY
(FUTURE WATER MAIN EXTENSION)
PER MERIDIAN W13.
® POTABLE/NON-POTABLE MAIN
CROSSING. REFER TO WATER NOTE 2
ON COVER SHEET 1.0.
ALL SEWER MANHOLES ARE TO BE 60" INNER DIAMETER,
CONSTRUCTED PER ISPWC SD-501.
THE SLOPE AND LENGTH OF SEWER MAIN IS CALCULATED
FROM INSIDE FACE OF MANHOLE TO INSIDE FACE OF
MANHOLE.
THECITYOF MERIDIAN REQUIRES 5 FEET OF COVER OVER
WATER MAINS THAT RUN ON MID -SECTION LINES.
ALL WATER MAIN IS TO BE BLUE ANSI/AWWA C-900 DR18,
PER CITY OF MERIDIAN SUPPLEMENTAL SPECIFICATIONS.
BENCH MARKS 61
TBM #1 - 2726.57 - RIM OF EX SEWER MANHOLE-2.
LOCATED APPROX STA 2+00 ON EXISTING SEWER MAIN.
SEE SHEET 2.
TBM #2 - 2730.45 - BRASS CAP [HIGHWAY MONUMENT]
LOCATED APPROX STA 5+20. SEE SHEET 2.
NOT APPROVED FOR
CONSTRUCTION
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